/Engine/Plugins/Animation/ControlRig/Source/ControlRig/Public/Tools/ControlRigPoseMirrorSettings.h
Per Project Settings for the Mirroring, in particular what axis to use to mirror and the matching strings.
[UCLASS](Programming/UnrealArchitecture/Reference/Classes#classdeclaration)(Config=EditorPerProjectUserSettings) class UControlRigPoseMirrorSettings : public [UObject](API\Runtime\CoreUObject\UObject\UObject)
TEnumAsByte<EA...
AxisToFlip
The axis to flip for rotations
FString
LeftSide
The String to denote Controls on the Left Side
TEnumAsByte<EA...
MirrorAxis
The axis to mirror translations against
FString
RightSide
The String to denote Controls on the Right Side